Mixing-machine



E. 8. LA CROIX.

MIXING MACHINE. APPLICATION FILED SEPT. 7. 1920.

1,379,707 Patented. May 31,1921.

mmmbi STATEd EDGAR S. LA CROIX, 0F DULUTH, MINNESOTA.

MIXING-MACHINE.

Specification of Letters Patent.

Patented 1 Kay 31, 1921.

Application filed September 7, 1920. Serial No. 408,659.

To all whom it my concern Be it known that I, EDGAR S. LA CRoIx, a citizen of the United States, residing at Duluth, in the county of St. Louis and State of Minnesota, have invented certain new and useful Improvements in Mixing-Machines, of which the following is a specification, reference being had therein to the accompanying drawing.

This invention relates to mixing machines and has special reference to such a device particularly designed for the mixing of paints or like ingredients.

The principal object of the invention is to provide a device in which a more thorough and rapid mixing of the paint may be accomplished with the least exertion of power.

Another object is to provide a novel form of mixing paddles and blades for such a machine. 1

Other objects and advantages of my peculiar device will appear in the further description of the invention.

In the accompanying drawings forming part of this application and in which like reference characters indicate like parts:

Figure 1 is a top view of the mixing receptacle and the cross supporting bar for the driving mechanism, which, in this case, is shown as being of hand power;

Fig. 2 is an elevation and sectional view through one of the blade holding clips within the mixing receptacle;

Fig. 3 comprises a front and side elevation of one of the cross bar holding clips;

Fig. 4 is a vertical sectional view through the side of the receptacle adjacent the faucet closing device;

Fig. 5 is an elevation of the 1nter10r of the receptacle and driving mechanism, showin the receptacle in section; and

Fig. 6 is an inner end elevation of one of the fixed blades looking outwardly toward the end of same upon which it is supported.

1 represents a cylindrical receptacle, preferably made of metal, the upper end of which is open, and, centrally upon the bottom, is provided the reinforcement or step 2, forming a journal bearing for the rotatable shaft 3, the upper end of which is journaled within the removable cross piece 4, this latter being held in place upon the upper end of the receptacle by meansof suitable lugs 5 securely fastened to the 1ns1de of the receptacle and having screw-threaded studs 6 formed integral therewith and extending above the upper end of the receptacle.

pon one end of the cross-piece 4 is securely fixed an upwardly extending channel shaped journal bracket 7 in which the crank shaft 8 is journaled, said shaft carrylng upon its outer end the crank 9, and upon the opposite end the beveled gear 10. The latter meshes with the beveled gear 11 fixed to the shaft 3 just above the cross piece 4 and by which gears power is imparted to the shaft 3.

Upon the shaft 3 and within the receptacle are three sets of mixing paddles or blades 12, 13 and 14. Each of these blades are composed of a single piece of sheet metal having a plurality of relatively large holes therein and a clamping piece 15 by which latter they are clamped tightly about the shaft so as to be non-rotatably mounted thereupon. The opposite ends of the lower blade 14 are twisted in such a manner that the lowermost outer corner of each blade leads in its rotation within the receptacle resulting in a general lifting effect of the blade 14 when rotated. The blade 12 is of somewhat similar construction to the blade 14 except that the opposite ends are twisted in a direction opposite to the ends of the lower blade 14, resulting in a general tendency of the blade 12 to force the liquid in the receptacle downwardly and prevent its being splashed out of the upper open end of the receptacle. The blade 13 I prefer to make straight as shown in the drawings without the ends thereof being twisted in either direction.

Intermediate of the two end blades 12 and 14 and the center blade 13 are placed two sets of blades 16 and 17 there being two or more of such blades in either set and which extend inwardly toward the shaft 3 intermediate of the blades upon said shaft. These blades are also perforated in a similar manner tothat of the blades 12, 13 and 14, so that a portion of the liquid being mixed will pass therethrough during its agitation within the receptacle. The blades 16 and 17 are removably attached to the inner wall of the receptacle by a suitable keeper indicated at 18 being securely fixed to the inner wall of the receptacle forming a narrow space 19 between the central portion thereof and the wall of the receptacle, and in back of which keeper that portion of the bent end 20 beslight reverse tacle as much as posslble, but this may vary somewhat to suit individual-circumstances, as is obvious. I

While I have shown the device as being manually operated, it is evident that power maybeapplied, if preferred.

As a means for draining the contents of the-receptacle when desired, I have illus trated in Fig. 5 an ordinary molasses faucet 28 fixed tothe lower end of the receptacle, but itv is to be understood that there are many slight modifications which may be resorted to without departing from the spirit of the invention.

In Fig. 4,1 have shown the rod 24 which extends the entire depth .of the receptacle 7 and is held to the'wall thereof by means of two keepers 25, which are similar in shape to the keepers; 18. The lower end of the bent rod 2a is circular in shape and" entirely covers the aperture through the receptacle 7 to the molasses faucet23, therebypreventing the ingredients'of the paint being mixed from falling to the bottom of the receptacle and clogging the opening to the faucet. It

is evident then, that when the paint is thoroughly mixed within the receptacle" the same may be removed by manually raising the rod 24: and opening the valve of the faucet 23, which will allow the paint toflow freely therethrough. a v

' Iaving thus described my invention, what I claim and desire to secure by Letters Patent, is r A. stationary blade for a mixer of the class described having its attached-end bent at right angles to its body portion, said bent end having a notched slot therein, and a clip oermanently fixed to the walls of the mixer into which the slot in the blade is cooperatively removably engaged, substantially as described. 7 V

In testimony whereof I hereunto aflix my signature in the presence of two witnesses.

' EDGAR S. LA CROIX.

Witnesses:

R-EG. LAW GowEN,

S. CJBRONSON. 

